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Lip-type seal ring framework material for rotary shaft, as well as preparation method and application of lip-type seal ring framework material

A technology of lip seal ring and frame material, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of long frame processing procedures, inconvenient installation, and poor sealing ability of the outer circle, so as to increase wear resistance, Effect of improving holding power, increasing compatibility and adhesion

Active Publication Date: 2014-04-30
GUANGZHOU MECHANICAL ENG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The processing flow of skeletonless pure rubber oil seal is as follows: Figure 4 As shown, the skeletonless pure rubber oil seal has the characteristics of no skeleton processing, less working procedures and easy installation. However, the sealing ability of the outer circle is poor, and it can only seal oily working conditions.
The processing flow of oil seal with metal skeleton is as follows: Figure 5 As shown, the oil seal with a metal skeleton has a good sealing ability on the outer circle, but the tolerance requirements are precise, the installation is inconvenient, and the skeleton processing process is very long

Method used

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  • Lip-type seal ring framework material for rotary shaft, as well as preparation method and application of lip-type seal ring framework material
  • Lip-type seal ring framework material for rotary shaft, as well as preparation method and application of lip-type seal ring framework material
  • Lip-type seal ring framework material for rotary shaft, as well as preparation method and application of lip-type seal ring framework material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) Take 5kg, the average length is 2-2.5mm, and the surface area is 5-10m 2 / g of aramid 1414 pulp and 5kg N550 carbon black, after mixing, spray 50g of KH-550 silane coupling agent on the surface of aramid pulp, put it into a high-speed mixer at 1000rpm and stir for 15 minutes until evenly mixed, and the processed aramid pulp;

[0054] (2) Mixing is carried out on an open mixer, and the surface temperature of the roller is controlled below 80°C during the mixing process;

[0055] Thin pass 10kg of NBR 3345 5 times with a roll pitch of 0.5mm, and then cover the roll with a roll pitch of 1.5mm; then add 500g of zinc oxide, 100g of stearic acid and 200g of anti-aging agent RD, and cut the knife 3 times after eating the powder; Then adjust the roller distance to 2.0mm, and alternately add 5kg of quick-pressing carbon black N550 and 10kg of epoxy resin E-44 in 3 times, and cut the knife 5 times; Release agent (zinc stearate 200g, oleic acid amide 200g, vinyl silicone oil...

Embodiment 2

[0058] (1) Take 5kg, the average length is 2-2.5mm, and the surface area is 5-10m 2 5kg N550 carbon black per gram of aramid fiber 1414 pulp, after mixing, spray 50g KH-550 silane coupling agent on the surface of the aramid fiber pulp, put it into a high-speed mixer at 1000rpm and stir for 15 minutes until it is evenly mixed, and the treated Aramid pulp;

[0059] (2) Mixing is carried out on an open mixer, and the surface temperature of the roller is controlled below 80°C during the mixing process;

[0060] Pass 10kg of NBR 3430 three times with a roll pitch of 0.2mm, and then cover the roll with a roll pitch of 1mm; then add 300g of zinc oxide, 50g of stearic acid and 200g of anti-aging agent 4010NA, after eating the powder, cut the knife 5 times; Adjust the roller distance to 1.5mm, alternately add 5kg of quick press carbon black N550 and 8kg of epoxy resin E-44 in 3 times, and cut the knife 3 times; Molding agent (zinc stearate 200g, palm wax 200g), after eating powder, c...

Embodiment 3

[0063] (1) Take 3.5kg with an average length of 2-2.5mm and a surface area of ​​5-10m 2 / g of aramid 1414 pulp and 3.5kg N255 white carbon black, after mixing, spray 35g of Si-69 silane coupling agent on the surface of aramid pulp, put it into a high-speed mixer at 1000rpm and stir for 15 minutes until evenly mixed to obtain Treated aramid pulp;

[0064] (2) Mixing is carried out on an open mixer, and the surface temperature of the roller is controlled below 80°C during the mixing process;

[0065] Pass 10kg of NBR 3430 3 times with a roll pitch of 0.5mm, and then cover the roll with a roll pitch of 1mm; then add 500g of zinc oxide, 250g of stearic acid and 100g of anti-aging agent RD, after eating the powder, cut the knife 3 times; Adjust the roller distance to 1.5mm, add 10kg of diatomaceous earth and 12kg of epoxy resin E-51 alternately in 3 times, and cut the knife 5 times; Zinc stearate 200g, paraffin wax 200g, vinyl silicone oil 600g), after eating powder, cut the knif...

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Abstract

The invention discloses a lip-type seal ring framework material for a rotary shaft, as well as a preparation method and an application of the lip-type seal ring framework material, and belongs to the field of rubber-plastic seal. The lip-type packing framework material for the rotary shaft is formed by compounding a chemigum system, an epoxy resin system and an aramid pulp system. The preparation method comprises the steps as follows: pre-processing the aramid pulp system; carrying out glue mixing to the chemigum system, the epoxy resin system and the pre-processed aramid pulp on an open type mixing machine, so as to obtain the lip-type packing framework material for the rotary shaft. The lip-type packing framework material subjected to extruding and the semi-finished product of lip-type glue are subjected to mould pressing and vulcanizing, so as to obtain the lip-type sealing ring for the rotary shaft. Test results show that the lip-type seal ring disclosed by the invention is simple in production process, proper in difficulty at installation, and high in capacity of keeping the sealing force of an external circle.

Description

technical field [0001] The invention belongs to the field of rubber and plastic seals, and in particular relates to a skeleton material of a lip seal ring for a rotating shaft, a preparation method and application thereof. Background technique [0002] Lip seals for rotating shafts are common rubber seals, commonly known as oil seals. The function of the oil seal is generally to isolate the parts that need to be lubricated from the output parts in the transmission parts, so as not to let the lubricating oil leak. Commonly used oil seals mainly include the following types: non-skeleton pure rubber oil seal (J-shaped, Z-shaped pure rubber oil seal), type with metal skeleton (full skeleton, half-wrapped skeleton), type with fabric skeleton (cloth oil seal), etc. The specific form can refer to GBT 9877, GBT 13871, DIN 3761, JIS B2402. The cross-sectional structure of the skeletonless pure rubber oil seal is as follows: figure 1 As shown, the cross-sectional structure of oil s...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L63/02C08L77/10C08K13/02C08K3/22C08K5/09C08K3/04C08K3/36C08K3/34C08K3/26F16J15/32F16J15/3248
Inventor 向宇肖风亮叶素娟
Owner GUANGZHOU MECHANICAL ENG RES INST
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